Re the rolling clothes thing --

For me it works better when you place (or leave) the clothes in the bags that dry cleaners use, before you roll them up. I think the plastic helps them slide around so there is more sliding, less crinkling and creasing.

For some materials, there's no way you can stop them from looking bad. Others, impossible to crease. I am gradually transitioning my wardrobe to modern miracle fibers.

I get some usage out of folding and using the travel packer things, like these (mine are older models before the little handles). I use the heck out of them when traveling. On the bike the bigger ones (for my bigger clothes) are a bit big for my smaller panniers, so less great. I prefer to stage a wardrobe at work, shuttle things like underwear and machine wash stuff, and do the dry cleaning at the work site. A cheap linens & things closet in a storage area I could access worked wonders for me.